Nokia Lumia — handset nokia lumia 520 not working properly.....it always have some problem .

Address:

Patna, Bihar

i am not satisfied with my nokia lumia520 mobile.i always get problem in it since i have buy it.whenever i get trouble i reach to nokia care to resolve it. Right now my phone get hang, even i am not using internet on it nor i am doing any other work except calling. I had purchaged this phone with great expectation since we all in our family use and trust on nokia mobile set, but they were simple not smart phone, so this smart phone was very special to me, but i am very dissapointed.the touch screen guard does not response properly. when i went to the care centre they had changed my enire mother board due to several problem, but still it always had some flaws it it time to time which i ignored sometime.and all this happens during its warrenty date, due to this i even expanded its warrnty period after paying but no result...plz go through this matter. I WANT REPLACEMENT OF MY PHONE, due to this i get disturbed and not able to receive my calls .